Solve the Problem $2 ^ { 6 } \cdot 64 ^ { t }$

Multiple Choice

Solve the problem. Leave the answer in exponential notation.
-The expression $2 ^ { 6 } \cdot 64 ^ { t }$ approximates the number of bacteria after t hours. What is the initial number of bacteria, that is, the number when $t = 0$ ?

A) $2 ^ { 12 }$
B) $2 ^ { 36 }$
C) 0
D) $2 ^ { 6 }$